EP2428678A1 - Elektronisches Modul und Verfahren zur Einpassung einer leichten Bake auf einer Schaufelspitze - Google Patents

Elektronisches Modul und Verfahren zur Einpassung einer leichten Bake auf einer Schaufelspitze Download PDF

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Publication number
EP2428678A1
EP2428678A1 EP11007386A EP11007386A EP2428678A1 EP 2428678 A1 EP2428678 A1 EP 2428678A1 EP 11007386 A EP11007386 A EP 11007386A EP 11007386 A EP11007386 A EP 11007386A EP 2428678 A1 EP2428678 A1 EP 2428678A1
Authority
EP
European Patent Office
Prior art keywords
light
blade tip
blade
light emitting
electronic module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11007386A
Other languages
English (en)
French (fr)
Inventor
Ion Arocena De La Rua
Anna Candela Garolera
Eneko Sanz Pascual
Pablo Sanchis Gurpide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Gamesa Renewable Energy Innovation and Technology SL
Original Assignee
Gamesa Innovation and Technology SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gamesa Innovation and Technology SL filed Critical Gamesa Innovation and Technology SL
Publication of EP2428678A1 publication Critical patent/EP2428678A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/10—Arrangements for warning air traffic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/30—Lightning protection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/708—Photoelectric means, i.e. photovoltaic or solar cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • This invention refers on the one hand to the electronic device used to emit a certain light intensity at the tip of a wind turbine blade, and on the other hand to the method used to reduce the required power that needs to be transported by the transmission system in order to power a light emitting module located at the blade tip.
  • the blade tips of wind turbines located in areas with air traffic need to be fitted with a light beacon. When they are lit, the aircraft can visually identify the blades and avoid the obstacles.
  • a blade light beacon system consisting of a power supply usually placed in the rotor hub, a transmission system consisting of a conductive element that extends longitudinally along the length of the blade, and a light emitting module that lights the blade tip.
  • the energy source can be electric energy or light energy (such as the light emission produced by a laser)
  • the cable can be an electrical conductive element or fiber optic
  • the blade tip lighting module can consist of lamps or LED diodes. If a light beam is used as a power supply, a light-to-voltage converter must be included before the light emitting module.
  • the light intensity developed at the blade tip depends on the power that can be transported across the transmission system. Since wind turbines are becoming increasingly large, the long distances from the hub to the blade tip can make it difficult to properly power the light emitting module at the tip.
  • the fiber optic used in the aforementioned patent is a means of transmission commonly used for transmitting data and its power transmission capacity is low, even more so when compared with that of an electrical conductor. If the low transmission performance is combined with the tens of meters existing between the emission and reception points, as well as the possible inclusion of intermediate connectors arranged along the length of the blade, the capacity of fiber optic for transmitting power is even lower and can constitute a limitation for the development of the system.
  • the invention's electronic module has been designed and a method has been developed for transmitting sufficient light intensity to the beacon system.
  • One object of the invention is to use an electronic circuit located between the transmission system and the light emitting module in order to reduce the power transported by the transmission system, in this specific case consisting of fiber optic, to power the tip module.
  • Another object of the invention is to provide each of the blades with sufficient lighting power to meet the lighting requirements, and also to ensure that the tip module is only lit during the 120° in which the blade is in the top position.
  • another object of the invention is for the electronic module to be capable of storing the power which is not consumed by the tip module during the 240° in which the blade tip is not in the top position, and use this energy to increase the power available in the light emitting module during the 120° in which the blade is in the top position.
  • another object of the invention is to provide the unit with a control circuit in which the current switch is controlled (depending on whether the blade is in the top or bottom position) from the signal of a sensor located in the wind turbine hub, using the fiber optic along which the power is transmitted to also enable communication between the sensor and the switch.
  • the signal applied to the control terminal that controls the change-of-state switch comes from a sensor.
  • the sensor can be a blade position sensor located in the hub or in the blade tip electronic circuit.
  • the light signal with which power is provided to the system can also be used as a setpoint signal, through a flashing or pulse code that the control terminal of the tip module electronic circuit uses to change the switch's state.
  • the main advantage of this new design is the reduction in the required power that must flow through the transmission system of the blade light beacon, enabling the use of fiber optic to remotely power the tip module and the use of a power supply providing less power than that required to light an equivalent tip module.
  • the wind turbine blade (1) is attached to the rotor hub (2).
  • the rotor hub (2) is the place selected for placing the power supply (3) of the light beam that will light the blade tip (1).
  • the light beam preferably laser, will travel along the length of the blade (1) through the transmission system (4) to the light-to-voltage converter (5).
  • This converter is in charge of converting the light signal to an electrical signal that powers the light emitting module (6) positioned at the tip.
  • an electronic module (7) is positioned between the converter (5) and the light emitting module (6), shown in Figure 2 .
  • This electronic module (7) has two distinct parts: a power circuit and a control circuit.
  • the electronic module (7) has other electronic components (Zener diodes, resistors, etc.) for adjusting the voltage level at the input of the light emitting module (6) and regulating the discharge time of the condenser (8).
  • the electronic module (7) is encapsulated for protection against lightning strikes.
  • the operating method of the electronic module (7) is controlled by the readings taken by the pulse sensor (11).
  • the module's off or on signal is determined based on the measurement of the rotor position provided by the sensor placed in the hub (10).
  • This sensor instructs the power supply (3) to emit one or more light pulses (flashing code of the laser beam) which are transmitted by the transmission system (4) and generate flashing in the output of the light-to-voltage converter, which is detected by the pulse sensor (11).
  • the pulse detector acts on the switch (9), which opens during the OFF interval to charge the condenser (8) and closes during the ON interval to power the light emitting module (6) with the energy stored in the condenser. During this period, the condenser's loss of charge caused by the powering of the light emitting module is offset partially with the power that is still received from the light-to-voltage converter (5).
  • the switch control provides two intervals, ON and OFF.
  • the light emitting module (6) at the tip of the blade (1) is switched on at least during the 120° in which the blade (1) is in the top position (ON interval), and is switched off during the 240° in which the blade is not in its top position (OFF interval).
  • the power which is not consumed by the light emitting module (6) is stored in a condenser (not shown in Figure 3 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
EP11007386A 2010-09-14 2011-09-12 Elektronisches Modul und Verfahren zur Einpassung einer leichten Bake auf einer Schaufelspitze Withdrawn EP2428678A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201001185A ES2387364B1 (es) 2010-09-14 2010-09-14 Modulo electronico y metodo utilizado para el balizado de la punta de pala

Publications (1)

Publication Number Publication Date
EP2428678A1 true EP2428678A1 (de) 2012-03-14

Family

ID=44905248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11007386A Withdrawn EP2428678A1 (de) 2010-09-14 2011-09-12 Elektronisches Modul und Verfahren zur Einpassung einer leichten Bake auf einer Schaufelspitze

Country Status (4)

Country Link
US (1) US20120063895A1 (de)
EP (1) EP2428678A1 (de)
CN (1) CN102438355A (de)
ES (1) ES2387364B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3650688A4 (de) * 2017-07-07 2021-04-07 ADWEN Offshore, S.L. Bakenbeleuchtungsvorrichtung und windturbine mit dieser vorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8511177B1 (en) 2011-12-15 2013-08-20 Shaw Shahriar Makaremi Blade condition monitoring system
US8757003B1 (en) 2011-12-15 2014-06-24 Shaw Shahriar Makaremi Multi-frequency-band blade condition monitoring system
DE102015116596A1 (de) * 2015-09-30 2017-03-30 Wobben Properties Gmbh Windparkflugbefeuerungssystem sowie Windpark damit und Verfahren zur Befeuerung eines Windparks
CN105639836A (zh) * 2016-01-27 2016-06-08 赵大森 一种智能高跟鞋、鞋跟高度无线控制系统及其控制方法
CN109469581A (zh) * 2018-12-05 2019-03-15 北京乾源风电科技有限公司 一种风力发电机组叶片示廓装置
CN111120201A (zh) * 2020-01-06 2020-05-08 北京乾源风电科技有限公司 一种新型的带有航空障碍灯的新型叶片
CN111963385B (zh) * 2020-08-17 2021-06-29 上海电气风电集团股份有限公司 风力发电机组叶片净空的监测装置及方法及风力发电机组
US11672243B2 (en) 2021-02-24 2023-06-13 Timothy Just Wildlife deterring windmill

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11159440A (ja) * 1997-11-28 1999-06-15 Mitsubishi Heavy Ind Ltd 風車用航空障害灯装置
JPH11182409A (ja) * 1997-12-16 1999-07-06 Nkk Corp 風力発電機の航空障害灯点滅装置
WO2008007142A1 (en) * 2006-07-14 2008-01-17 Bae Systems Plc Heat distribution in a distributed lighting apparatus
EP2088313A2 (de) * 2008-02-08 2009-08-12 Gamesa Innovation & Technology, S.L. Rotorblatt einer Windenergieanlage mit einer Lichtbake

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103387A1 (de) * 2001-01-26 2002-08-01 Thorsten Nordhoff Windkraftanlage mit einer Einrichtung zur Hindernisbefeuerung bzw. Nachtkennzeichnung
KR20040073461A (ko) * 2001-12-08 2004-08-19 우벤 알로이즈 경보등을 구비한 풍력 설비의 로터 블레이드
PL1709416T3 (pl) * 2004-01-23 2018-08-31 Lm Wind Power International Technology Ii Aps Urządzenie zawierające układ przystosowany do stosowania przy kompensacji temperatury przy pomiarach odkształcenia w konstrukcjach wzmacnianych włóknami
ES2655312T3 (es) * 2007-10-24 2018-02-19 Vestas Wind Systems A/S Pala de turbina eólica, turbina eólica y método para la fabricación de una pala de turbina eólica

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11159440A (ja) * 1997-11-28 1999-06-15 Mitsubishi Heavy Ind Ltd 風車用航空障害灯装置
JPH11182409A (ja) * 1997-12-16 1999-07-06 Nkk Corp 風力発電機の航空障害灯点滅装置
WO2008007142A1 (en) * 2006-07-14 2008-01-17 Bae Systems Plc Heat distribution in a distributed lighting apparatus
EP2088313A2 (de) * 2008-02-08 2009-08-12 Gamesa Innovation & Technology, S.L. Rotorblatt einer Windenergieanlage mit einer Lichtbake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3650688A4 (de) * 2017-07-07 2021-04-07 ADWEN Offshore, S.L. Bakenbeleuchtungsvorrichtung und windturbine mit dieser vorrichtung

Also Published As

Publication number Publication date
ES2387364A1 (es) 2012-09-20
CN102438355A (zh) 2012-05-02
ES2387364B1 (es) 2013-07-29
US20120063895A1 (en) 2012-03-15

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